{"title":"A novel bulk magnetostrictive sensor for bending applications","authors":"","doi":"10.1016/j.jmmm.2024.172636","DOIUrl":null,"url":null,"abstract":"<div><div>In this paper, a bulk magnetostrictive material is used to measure bending forces. It is made of a cylindrical vanadium permendur alloy. In this sensor, two comb shape magnetic cores and excitation coils are used to create magnetic fields in the material’s surface layer. When bending force is applied to the material, created stresses causes a change in the magnetic flux density on the surface of the material. Induced voltage changes in the pickup coils are used as the output of the sensor. The range of the sensor is up to 280 Newtons. The accuracy of the bending sensor is <span><math><mrow><mo>±</mo><mn>5.1</mn><mo>%</mo><mi>F</mi><mi>S</mi><mo>.</mo></mrow></math></span> The bending force measurement sensitivity of the sensor is <span><math><mrow><mn>7.5</mn><mi>m</mi><mi>V</mi><mo>/</mo><mi>N</mi></mrow></math></span>. By performing combined loading tests, it was found that the sensor is able to detect bending force in both directions. The outputs of the two directions are decoupled and only 4.7 % is affected by each other.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Magnetism and Magnetic Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304885324009272","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, a bulk magnetostrictive material is used to measure bending forces. It is made of a cylindrical vanadium permendur alloy. In this sensor, two comb shape magnetic cores and excitation coils are used to create magnetic fields in the material’s surface layer. When bending force is applied to the material, created stresses causes a change in the magnetic flux density on the surface of the material. Induced voltage changes in the pickup coils are used as the output of the sensor. The range of the sensor is up to 280 Newtons. The accuracy of the bending sensor is The bending force measurement sensitivity of the sensor is . By performing combined loading tests, it was found that the sensor is able to detect bending force in both directions. The outputs of the two directions are decoupled and only 4.7 % is affected by each other.
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The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public.
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